Delavan 1.35-90-B Oil Burner Nozzle 1.35 Gph 90 Degree

Product Description

The DELAVAN 1.35-90-B is a solid cone oil burner nozzle rated at 1.35 gallons per hour (GPH) with a 90-degree spray angle and a 100 psi operating pressure. It is designed for use in residential and light commercial oil-fired heating systems where consistent atomization and reliable ignition are required. The Type B solid cone pattern distributes droplets uniformly throughout the full spray cone, making it well-suited for larger burner heads that demand even heat distribution across the combustion chamber. HVAC and oil burner service technicians install this nozzle as part of routine annual tune-ups or as a direct replacement during combustion troubleshooting.

This nozzle is appropriate for oil-fired furnaces, boilers, and water heaters that require a solid cone spray pattern at higher flow rates. The Type B classification produces a progressively more hollow spray pattern at flow rates above 8.00 GPH, but at 1.35 GPH it delivers a consistent, uniform cone that supports smooth ignition and efficient combustion. It is identified by a blue vial color code for quick field identification during nozzle selection and replacement.

Key Features

• 1.35 GPH flow rate for precise fuel delivery in oil-fired heating equipment
• 90-degree spray angle suits burner heads requiring a wide combustion pattern
• Solid cone Type B pattern distributes droplets uniformly throughout the full spray zone
• Rated at 100 psi operating pressure
• Blue vial color coding allows fast, accurate nozzle identification in the field
• Supports smooth ignition and efficient combustion, particularly in larger burners

Compatibility

Designed as an OEM-style replacement nozzle for oil burner assemblies requiring a 1.35 GPH, 90-degree, solid cone Type B nozzle at 100 psi.

Installation Notes

Oil burner nozzle replacement is performed by licensed HVAC or oil burner service technicians. Always shut down the burner and allow the system to cool before accessing the nozzle assembly. Use a proper nozzle wrench to avoid damaging the electrode assembly or nozzle adapter. Nozzle replacement is typically part of an annual oil burner tune-up and should be accompanied by a combustion efficiency check per NFPA 31 guidelines.